Review Lesson 7 Bio 2 Quarter 3

Cardiovascular System

Heart

A muscular pump

Heart

moves blood through the body

pericardial sac

Heart is suspended in the ?

Pericardial sac

surrounds the heart

fluid

Pericardial sac is surrounded with ?

Pericardial sac

protective sac of connective tissue

Four

How many chambers does a heart have?

cardiac muscle

Heart is made up of ? cells

Myocardium

The muscle of the heart

Myocardium

strong and thick

electricity

Myocardium can conduct ? like nerves

Myocardium

composed of spontaneously contracting cardiac muscle fibers

coronary arteries

Myocardium blood supply comes from the ?

2, atria

how many and what do you call the heart’s upper chambers

Atria

thin walled

Atria

receive blood from veins

ventricles

Atria sends blood to ?

2, Ventricles

how many and what do you call the heart’s lower chambers

Ventricles

thick walled

Ventricles

receive blood from atria

Ventricles

pump out blood through arteries

Septum

wall that divides heart into right and left halves

Chordae tendinea

Cord-like tendons

heart strings

Chordae tendinea is simply the ?

Chordae tendinea

prevent inversion of valve

Chordae tendinea

connect papillary muscles to tricuspid and mitral valves

Papillary muscles

small muscles that anchor the cords

Superior/Inferior Vena Cava, Right Atrium, Tricuspid Valve, Right Ventricle, Pulmonary Valve, Pulmonary Artery, Pulmonary Vein, Left Atrium, Mitral Valve, Left Ventricle, Aortic Valve, Aorta

enumerate the process of blood circulation

Circulation

Blood flow through the circuit of vessels

Systemic circulation

it is the blood flow from the left ventricle into the aorta, other arteries, arterioles, capillaries, venules, and veins to the right atrium of the heart

Pulmonary circulation

it is the blood flow from the right ventricle to the pulmonary artery to lung arterioles, capillaries and venules, and veins, to left atrium

Hepatic-portal circulation

unique circulatory system

Hepatic-portal circulation

the capillary beds of the liver and the small intestine/spleen, allowing for the mixing of deoxygenated and oxygenated blood before draining into the hepatic vein

arterial wall

pulse can be felt because of the elasticity of ?

Pulse

alternate expansion and elastic recoil of blood vessels caused by intermittent ejections of blood from heart into aorta with each ventricular contraction

Arteries

receive blood from ventricles

heart

Arteries takes blood away from the ?

Arteries

usually carry oxygenated blood

thickest

Arteries has ? vessel walls

elastic

Arteries are very ?

capillaries

Arteries connect to ?

Arteries

withstand greater blood pressure

Aorta

largest artery

Veins

have valves

Vena cava

the largest vein

Veins

usually carry deoxygenated blood

Veins

can stretch a great deal

capillaries

Veins transport blood away from ?

Veins

carry blood towards heart

atria

Veins take blood to ?

Veins

thinner vessel walls with less smooth muscles

Capillaries

smallest of blood vessels

Capillaries

only 1 cell thick

epithelial cell

Capillaries is made of ?

Capillaries

connect arteries to veins

Capillaries

Bring oxygen and nutrients to cell

Capillaries

where blood is under low pressure and moving slowly

Capillaries

removes CO2, urea and other wastes from cells

heart, artery, arteriole, capillary, venule, vein, heart

How blood travels through vessels?

Blood

messenger functions, including transport of hormones and signaling of tissue

Coagulation

part of body’s self repair mechanism

Blood

regulation of core body temperature

Blood

regulation of body pH and ion concentrations

tissues

Blood supplies oxygen to ?

Blood

supply nutrients such as glucose, amino acids and fatty acids to tissues

Blood

removal of wastes such as CO2, urea, and lactic acid from tissues

Blood

Immunological functions including circulation of white cells, and detection of foreign material by antibodies

8

What percent of your body is blood?

4-6

On average we contain ? liters of blood

pint, 15 pounds

We contain about a ? of blood for every ? of body weight

45

What percent of your blood is cellular?

55

What percent of your blood is plasma?

Plasma

a clear straw colored fluid

90

What percent of plasma is water

Plasma

these are dissolve gases, vitamins, minerals, salts, nutrients, enzymes, hormones, waste products, plasma proteins

41

what percent of your body is rbc?

4

what percent of your body is wbc?

red and white blood cells, platelets

what are the cellular components of blood

erythrocytes

red blood cells is also called as ?

leukocytes

white blood cells is also called as ?

thrombocytes

platelets is also called as ?

bone marrow

blood cells are formed in ?

biconcave

rbc has ? disks

red blood cells

no nucleus

hemoglobin

rbc contains the iron based pigment ?

oxygen

hemoglobin binds with ? to transport it

120 days

life span of rbc

white blood cells

no definite shape

white blood cells

have nucleus

red blood cells

white blood cells is larger than ?

infection

white blood cells number increase if ? is present

white blood cells

protect body against infection

white blood cells

life span varies

3 days-a few months

the range of white blood cells life span

Granulocytes

polymorph nuclear leucocytes are also called as ?

Neutrophil

main target: bacteria and fungi

Basophil

main target: larger parasites

Eosinophil

main target: release histamine for anti-inflammatory response

Monocyte

main target: pathogens

Lymphocytes

responsible for triggering a specific immune response